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Finding the Fourth Proportional to 319,812.19, 441,340.70 and 183,872.71

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Solution

The fourth proportional to 319,812.19, 441,340.70 and 183,872.71 is: 253,744.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,812.19 : 441,340.70 = 183,872.71 : x
  2. Step 2: Convert to fraction form
    319,812.19/441,340.70 = 183,872.71/x
  3. Step 3: Cross multiply
    319,812.19x = 441,340.70 × 183,872.71
  4. Step 4: Simplify right side
    319,812.19x = 81,150,509,967.62
  5. Step 5: Solve for x
    x = 81,150,509,967.62/319,812.19
  6. Step 6: Final answer
    x = 253,744.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.